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Edelbrock EDE Gear Drive - Accu-Drive Gear Drive B/B Chevy

Part #: 7891

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$325.95 For each

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1972 Chevrolet Camaro, 1971 Chevrolet Camaro, 1977 GMC K25 Suburban, 1976 GMC K25 Suburban, 1978 GMC K25, 1977 GMC K25, 1976 G... See more

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Description:
Edelbrock's Accu-Drive gear drive kit (part #7891) replaces the stock timing chain on big-block Chevy engines with a compound gear drive system machined from billet SAE-1144 steel with induction-hardened, shaved teeth. The floating main idler self-positions between the crank and cam gears for equal load sharing, eliminating chain stretch and allowing multiple cam timing adjustments. Most installations require no block modifications, though some fitting of the axles and front cover may be needed.

About Edelbrock

Edelbrock is a legendary performance parts manufacturer. It was founded in 1931 by Vic Edelbrock, and has an incredible history of success throughout the last last century.

Edelbrock has over six locations totaling over 600,000 square feet, all in California. Their research and development capabilities are phenomenal. Perhaps more than any other aftermarket automotive brand in the world, Edelbrock is known to be a name brand you can trust.

FAQs

Q: How do you install cam gears?
A: Installation should be left to the pros on this one since timing will be involved. If you plan on doing it yourself, removal of the upper timing belt cover will need to be done to reveal the cam gears. The valve cover along with the camshafts will need to be removed. Once this is done, replace the factory cam gears with your new ones and reinstall onto your camshaft. Make sure when you remove and reinstall the camshafts and cam gears they are at top dead center (TDC). Replace everything as you removed them and re-time your vehicle.

Q: Do cam gears come individually?
A: Cam gears are sold individually unless otherwise noted. Depending on whether your vehicle is a single overhead cam (SOHC) or a dual overhead cam (DOHC), you will need one or two cam gears.

Q: What do cam gears do? Why buy cam gears?
A: Cam gears are used by many for a reliable, precise and affordable method of fine-tuning the action of the valves. This complements the installation of performance add-ons such as headers, camshafts, intakes or specialty milling work on built motors. Cam gears are often used for adjusting the timing degree of newly installed camshafts in your motor. You want to adjust cam timing to make the maximum power with your motor. If you buy aftermarket cam shafts, you cannot fine tune them to make more power if you don't have a set of adjustable cam gears.

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A lot of Edelbrock's success can be traced to its early involvement in midget car racing, where many new Edelbrock parts were tested.

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Edelbrock has been making engines faster since flatheads were still new technology!

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Edelbrock was one of the first companies to use an engine dynamometer to test performance gains. The Clayton dyno was capable of recording up to 200-horsepower.

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Edelbrock's first parts catalog was printed just after WWII, in 1946.

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Edelbrock's first purpose-built manufacturing facility in 1949.

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Edelbrock's giant campus in Torrance, California houses its design, testing, and manufacturing departments.

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Founder of Edelbrock, Vic Edelbrock, Sr.

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The infamous Ford flathead Edelbrock Slingshot intake manifold. It was the first to bear the Edelbrock name.

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The So Cal Special streamliner used Edelbrock parts through the early 1950s.

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Vic Edelbrock, Sr., in his '32 Ford highboy roadster, crossing the timing lights at El Mirage.

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Vic with his six-carb Ram Log intake manifold.

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Vic, Sr., and his successor, Vic Edelbrock, Jr.

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Vic's '32 Ford went 112MPH way back in 1939! It may not sound fast by today's standards, but it paved the way for modern hot rodding.

If you live in California, please note this item may be subject to a Proposition 65 warning. Click here to learn more.

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